Signature of Quantum Phase Slips in a Layered Quasi-One-Dimensional Nb₂PdS₅ Superconductor.

ABSTRACT: Quantum phase slips (QPSs) have emerged as a key mechanism driving the breakdown of superconductivity in one-dimensional (1D) systems, especially under strong quantum fluctuations and disorder. In this context, we report the observation of a quantum phase slip event in quasi-1D Nb₂PdS₅ nanowires. Our findings reveal that as the wire width is reduced below the magnetic penetration depth, the superconducting transition (T _c) broadens significantly, a behavior that aligns well with the QPS theoretical model. The temperature-dependent resistance under magnetic fields applied perpendicular and parallel to the applied current (b-axis) of the Nb₂PdS₅ nanowire device shows the highest upper critical field (B _c2)

SUBMITTER: Jha R 

PROVIDER: S-EPMC12921603 | biostudies-literature | 2026 Feb

REPOSITORIES: biostudies-literature